Hi Linda, good job recognizing that dietary changes may be able to help with her itchiness. The answer to this question really depends on the underlying cause of her itchy skin, though. For example, if her itchiness is caused by allergies, you’ll want to try a food trial to identify the allergen and then use a single-protein, limited-ingredient diet to minimize her exposure to irritants. You can find a few recommendations in this article on the best cat food for skin health.